Illustration of advanced file input and output, MATLAB in Mathematics

Assignment Help:

Illustration of Advanced file input and output:

For illustration, to refer to the third number in the first element of the cell array:

>> subjdata{1}(3)

ans =

   3.3000

 

The script which reads in this data and echo-prints it is shown here:

1007_Illustration of Advanced file input and output.png

Executing this script generates the following results which are as shown below:

>> textscanex

5.3 a

2.2 b

3.3 a

4.4 a

1.1 b

File close successful

To conclude, we know four techniques of reading from a file. The function load will only work when the values in the file are all of similar type and there is similar number on every line in the file, so that they can be read into the matrix. If this is not the situation, lower level functions should be used. To use these, the file should be opened first and then closed whenever the reading has been done. The fscanf function will read into the matrix, converting the characters to their ASCII equivalents. The textscan function will rather read into a cell array which stores each column from the file into individual column vectors of the cell array. At last, the fgetl function can be used in a loop to read each line from the file as an individual string; the string manipulating functions should then be used to break the string into pieces and convert to numbers.


Related Discussions:- Illustration of advanced file input and output

Writing to files, Writing to Files: There are many lower level functio...

Writing to Files: There are many lower level functions which can write to files. We will focus on the fprintf function that can be used to write a file and also to append to a

Using functions with the vectors and matrices, Using Functions with the Vec...

Using Functions with the Vectors and Matrices: As MATLAB is written to work with the vectors and matrices, the whole vector or matrix can be passed as an argument to the funct

Program of built-in factorial function, Program of built-in factorial funct...

Program of built-in factorial function: Calling this function yields similar result as the built-in factorial function: >> fact(5) ans =   120 >> factorial(

Illustration of empty vectors , Illustration of Empty vectors: The Emp...

Illustration of Empty vectors: The Empty vectors can also be used to delete elements from the arrays. For illustration, to remove the third element from array, an empty vector

Empty vectors, Empty Vectors: An empty vector or in another words, a v...

Empty Vectors: An empty vector or in another words, a vector which stores no values, can be generated using the empty square brackets: >> evec = [] evec = [] >> lengt

Illustration of a recursive function, Illustration of a recursive function:...

Illustration of a recursive function: illustration is of a recursive function which does not return anything, but simply prints. The below function prtwords receives a sentenc

Polar form, Polar Form: Any complex number z = a + bi can be thought o...

Polar Form: Any complex number z = a + bi can be thought of as a point (a,b) or vector in the complex plane in which the horizontal axis is the real part of z, and the vertica

Example of recursive functions, Example of Recursive functions: This d...

Example of Recursive functions: This definition is recursive as a factorial is defined in terms of the other factorial. There are two parts to any recursive definition: the co

Function xlsread - file function, Function xlsread - file function: Th...

Function xlsread - file function: The function xlsread will read from the spreadsheet file. For illustration, to read from file just generated: >> ssnums = xlsread('ranexc

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd